The Spraying of Trees. 



585 



must be taken to dispatch the scourge. Accordingly, we secured an 

 outfit of McGowan nozzles, which would do double the work of the 

 Vermorels, and sent our best man, Peter C. Toner, into the orchard 

 to remain until he killed the worms. He began work on the morn- 

 ing of May 13th. It was evident at this time that the best results 

 had been obtained from the Paris green, and the dilute mixture (1 

 to 200, in Plot I.) had been as efficient as the stronger one. Accord- 

 ingly, we gave up all experimenting with mixtures, and gave our 

 attention wholly to the worms, using 1 pound of Parisfgreen to 200 



136.— A full crop. Natural size (LarviE about % grown). 



gallons of water, adding a little lime to prevent injury to the foliage. 

 Fig. 137 shows a portion of Mr. Scott's orchard. This second spray- 

 ing was done with great thoroughness, and I append diaries of it in 

 order that the reader may calculate the cost of the treatment, if he 

 desires. The gang consisted of our man Toner, and a helper, with 

 a one-horse wagon carrying a 50-gallon barrel. It was necessary to 

 go from ten to forty rods for water. 



May 13. Began work at 10 o'clock ; used 5 barrels of mixture ; 

 quit at 5:30. Hauled water about 40 rods. 



May 14. Pain and snow. 



